[腹腔镜胃旁路手术麻醉期间病态肥胖患者呼气末二氧化碳分压（Pet-CO2）与动脉血二氧化碳分压（PaCO2）的相关性]

[Correlation between Pet-CO2 and PaCO2 in morbidly obese patients during anesthesia for laparoscopic gastric bypass surgery].

作者信息

Hu Donghua, Tang Jieke, Xu Tianxing, Zhong Zhao, Liang Zhaojia, Liang Jianming, Nie Cai, Liu Jiayi, Zou Qirong, Peng Xuemei, Li Yalan

机构信息

Department of Anesthesia, First Affiliated Hospital of Jinan University; Guangzhou 510630, China. E-mail:

出版信息

Nan Fang Yi Ke Da Xue Xue Bao. 2014 Jan;34(1):121-3.

PMID:24463132

Abstract

OBJECTIVE

To investigate the correlation between arterial partial pressure of CO2 (PaCO2) and end expiratory tidal partial pressure of CO2 (Pet-CO2) in morbidly obese patients during anesthesia for laparoscopic gastric bypass surgery.

METHODS

Forty morbidly obese patients with a body mass index (BMI) between 35 and 50 kg/m(2) underwent laparoscopic gastric bypass surgery under general anesthesia. PaCO2 and Pet-CO2 were measured after intubation and before induction of pneumoperitoneum (T0), at 30 min (T1), 60 min (T2), and 120 min (T3) during pneumoperitoneum, and at 30 min (T4) and 60 min (T5) after deflation.

RESULTS

At each time point of measurement, Pet-CO2 was lower than PaCO2 in all the patients. PaCO2 and Pet-CO2 were positively correlated before, during, and after pneumoperitoneum (P<0.05). At a moderate pressure of CO2 pneumoperitoneum (16 mmHg), the level of correlation between PaCO2 and Pet-CO2 at T1, T2, and T3 differed from that before and after post-pneumoperitoneum.

CONCLUSIONS

PaCO2 and Pet-CO2 are closely correlated during a moderate CO2 pneumoperitoneum in morbidly obese patients undergoing laparoscopic gastric bypass surgery.

摘要